Chess South Africa Ratings Database

PLAYER PAGE

Personal

Weng, I (Ivan)

Chess SA id

1150148195

FIDE id

Date of birth

2015-09-06 (U12)

Gender

Male

Region

Cape Winelands (WCW)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-09-07

Personal details last changed

1900-01-01

Junior GPX Games

17.7

Junior GPX Points

1214.7

Item	Main	Standard	Rapid	Blitz
Rating	1279	1215.8	1355.2	1200
Raw rating	1278.7	1201.2	1355.2	1200
Weighted rating	1279	1215.8	1318	1200
Weighted performance	1220.9	1128.8	1222.8	0
Floor	824.1	752.7	855.2	700
K-factor	36	36	36	36
Min/Max rating change allowed	148.2	165.5	132.9	165.8
Highest rating	1324.1 2025-09-01	1252.7 2025-04-01	1355.2 2025-09-01	1200 2018-10-01
Highest raw rating	1324.1 2025-09-01	1252.7 2025-04-01	1355.2 2025-09-01	1200 2024-02-01
Highest weighted rating	1279 2025-09-30	1252.7 2018-10-01	1313.8 2025-09-01	1200 2018-10-01
Highest weighted performance	1309.4 2024-05-01	1200.9 2023-03-01	1337.1 2023-04-01	1200 2024-02-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	1.7	1.1	0	0
New rating	1280.8	1216.9	1355.2	1200
Analysis
Rating	1279	1215.8	1355.2	1200
Raw rating	1278.7	1201.2	1355.2	1200
Weighted rating	1279	1215.8	1318
Weighted performance	1220.9	1128.8	1222.8
K-factor	36	36	36	36
Floor	824.1	752.7	855.2	700
Max/Min rating change allowed	148.2	165.5	132.9	165.8
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1278.7	1201.2	1355.2	1200
New weighted rating	1280.8	1216.9	1321.8	1200
New weighted performance	1220.5	1128.4	1222.3	0
Temp new rating	1280.8	1216.9	1355.2	1200
Temp new rating +/-	1.7	1.1	0	0
Final new rating +/-	1.7	1.1	0	0
New rating	1280.8	1216.9	1355.2	1200
New K-factor	36	36	36	36
New floor	824.1	752.7	855.2	700

Item	Main	Standard	Rapid
	0	0	0
	20	15	5
	38	21	17
	52	18	34
	6	6	0
	0	0	0
History	116	60	56

Games since
	Main 74	Standard 40		Rapid 34		Blitz 0
Gender	Male
Age group	U12
Region	Cape Winelands (WCW)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	3381		1103		158
Male	2636		801		110
U12	524		186		32
U12 Male	369		122		21
Standard
	RSA		Province		Region
Overall	3798		1079		148
Male	2875		739		95
U12	603		176		23
U12 Male	416		106		14
Rapid
	RSA		Province		Region
Overall	714		368		52
Male	597		306		41
U12	109		66		14
U12 Male	81		48		10
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	20	11	55	42.5	1273.2	1315.7
Standard	15	7	46.67	-28.3	1283	1254.6
Rapid	5	4	80	255	1243.8	1498.8
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	116	58	50	0	1234.2	1234.2
Standard	60	25	41.67	-70.8	1259.7	1188.8
Rapid	56	33	58.93	75.9	1206.8	1282.7
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1278.7	1201.2	1355.2	1200
2025-09-01	1324.1	1252.7	1355.2	1200
2025-08-01	1296.1	1252.7	1315.9	1200
2025-07-01	1296.1	1252.7	1315.9	1200
2025-06-01	1296.1	1252.7	1315.9	1200
2025-05-01	1296.1	1252.7	1315.9	1200
2025-04-01	1296.1	1252.7	1315.9	1200
2025-03-01	1289.3	1236.1	1315.9	1200
2025-02-01	1276.3	1210.4	1315.9	1200
2025-01-01	1276.3	1210.4	1315.9	1200
2024-12-01	1276.3	1210.4	1315.9	1200
2024-11-01	1276.3	1210.4	1315.9	1200
2024-10-01	1276.3	1210.4	1315.9	1200
2024-09-01	1276.3	1210.4	1315.9	1200
2024-08-01	1263.5	1176	1315.9	1200
2024-07-01	1274.3	1179.6	1315.9	1200
2024-06-01	1274.3	1179.6	1315.9	1200
2024-08-01	1208.9	1116.8	1272.7	1200
2024-04-01	1208.9	1116.8	1272.7	1200
2024-03-01	1177.1	1093.6	1257.9	1200
2024-02-01	1172.6	1093.6	1279.1	1200
2024-01-01	1172.6	1093.6	1279.1	1200
2023-12-01	1172.6	1093.6	1279.1	1200
2023-11-01	1212.6	1140.4	1279.1	1200

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U13)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	1	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
3	Cape Winelands Schools Prestige 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
4	Cape Winelands Schools - Trials 1 2025 (U11 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Western Cape Schools - Top Schools 2025 (U13)	2025-09-06	2025-09-07	Standard	Overberg (WOS)	6	5	1	Yes	Analysis
2	Cape Winelands Top Schools 2025 (U13)	2025-08-23	2025-08-23	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
3	Cape Winelands Schools Prestige 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
4	Cape Winelands Schools - Trials 1 2025 (U11 Boys)	2025-02-22	2025-02-22	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
5	Western Cape Women�s Championship 2024 (U10)	2024-08-09	2024-08-09	Standard	West Coast (WCU)	5	0	0	No	Analysis
6	De Villiers PS Tournament 2024 (U10)	2024-08-17	2024-08-17	Standard	Cape Winelands (WCW)	5	5	3	Yes	Analysis
7	Cape Winelands - Top Schools 2024 (U7-U11 Mixed)	2024-07-24	2024-07-24	Standard	Cape Winelands (WCW)	5	5	2	Yes	Analysis
8	Robertson Strategema Chess May 2024 (U9)	2024-05-11	2024-05-11	Rapid	Cape Winelands (WCW)	5	5	4	Yes	Analysis
9	Western Cape PS Individuals Championship 2024 (U9 Boys)	2024-05-04	2024-05-05	Standard	West Coast (WCU)	6	6	3.5	Yes	Analysis
10	Brave Knights 2024 (U9)	2024-03-16	2024-03-16	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
11	Cape Winelands Schools - Prestige 2024 (U9 Boys)	2024-03-02	2024-03-02	Standard	Cape Winelands (WCW)	5	5	2.5	Yes	Analysis
12	Cape Winelands Schools - PS Trials 1 2024 (U9 Boys)	2024-02-10	2024-02-10	Rapid	Cape Winelands (WCW)	6	6	3	Yes	Analysis
13	2023 Western Cape Rural Cup (U10)	2023-12-09	2023-12-10	Standard	Cape Winelands (WCW)	5	4	0	Yes	Analysis
14	Ashton Skaakmat Rapid 2023 (U9)	2023-11-18	2023-11-18	Rapid	Cape Winelands (WCW)	6	6	4	Yes	Analysis
15	Worcester Knock-Out 2023 (U9 Boys)	2023-10-14	2023-10-14	Rapid	Cape Winelands (WCW)	6	6	4.5	Yes	Analysis
16	Western Cape Closed Championship 2023 (U10)	2023-09-23	2023-09-23	Rapid	Cape Town (WCT)	6	6	2	Yes	Analysis
17	Western Cape PS Individuals 2023 (U9 Boys)	2023-05-05	2023-05-06	Standard	Cape Town (WCT)	6	6	2	Yes	Analysis
18	Steinitz Open 2023 (U10)	2023-05-27	2023-05-27	Rapid	Cape Town (WCT)	5	5	2	Yes	Analysis
19	Midas Paints Chess Cup Term 2 2023 (U8)	2023-04-15	2023-04-15	Rapid	Cape Winelands (WCW)	5	5	4.5	Yes	Analysis
20	Cape Town Open 2023 (Rapid)	2023-03-26	2023-03-26	Rapid	Cape Town (WCT)	6	6	1	Yes	Analysis
21	Cape Winelands Schools Prestige 2023 (U9 Boys)	2023-03-11	2023-03-11	Standard	Cape Winelands (WCW)	5	5	3.5	Yes	Analysis
22	Cape Winelands Schools Chess - Trials 1 2023 (U9 Boys)	2023-02-18	2023-02-18	Standard	Cape Winelands (WCW)	5	3	1.5	Yes	Analysis
23	Drakenstein Pioneers Club Championship 2022 (U14)	2022-09-20	2022-10-11	Standard	Cape Winelands (WCW)	7	6	0	Yes	Analysis

#	Games	Start				End
1	7	Tournament Worcester Knock-Out 2023				Tournament Ashton Skaakmat Rapid 2023
		date 2023-10-14	rnd 2	type Rapid	result 1	date 2023-11-18	rnd 2	type Rapid	result 1
		Opponent Matolengwe, L (Lemvana)				Opponent Van Der Bank, R (Recailinn)
2	6	Tournament Midas Paints Chess Cup Term 2 2023				Tournament Western Cape PS Individuals 2023
		date 2023-04-15	rnd 1	type Rapid	result 0.5	date 2023-05-05	rnd 1	type Standard	result 1
		Opponent Scheepers, A (Ava)				Opponent Abrahams, M (Marshal)
3	5	Tournament Western Cape PS Individuals Championship 2024				Tournament Robertson Strategema Chess May 2024
		date 2024-05-04	rnd 3	type Standard	result 1	date 2024-05-11	rnd 1	type Rapid	result 1
		Opponent Du Preez, J (Janco)				Opponent Nel, C (Curtly)

#	Games	Start				End
1	4	Tournament Western Cape PS Individuals Championship 2024				Tournament Western Cape PS Individuals Championship 2024
		date 2024-05-04	rnd 3	type Standard	result 1	date 2024-05-05	rnd 6	type Standard	result 1
		Opponent Du Preez, J (Janco)				Opponent Geldenhuys, L (Liam)
2	4	Tournament Cape Winelands Schools Prestige 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-11	rnd 3	type Standard	result 1	date 2023-05-05	rnd 1	type Standard	result 1
		Opponent Van Zyl, A (Adam)				Opponent Abrahams, M (Marshal)
3	3	Tournament De Villiers PS Tournament 2024				Tournament Cape Winelands Schools - Trials 1 2025
		date 2024-08-17	rnd 5	type Standard	result 1	date 2025-02-22	rnd 2	type Standard	result 1
		Opponent Coetzee, S (Sean)				Opponent Steenkamp, W (Wentzel)

#	Games	Start				End
1	7	Tournament Worcester Knock-Out 2023				Tournament Ashton Skaakmat Rapid 2023
		date 2023-10-14	rnd 2	type Rapid	result 1	date 2023-11-18	rnd 2	type Rapid	result 1
		Opponent Matolengwe, L (Lemvana)				Opponent Van Der Bank, R (Recailinn)
2	6	Tournament Robertson Strategema Chess May 2024				Tournament Cape Winelands Top Schools 2025
		date 2024-05-11	rnd 3	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Edons, M (Mihandro)				Opponent Grill, E (Eli)
3	5	Tournament Cape Winelands Schools - PS Trials 1 2024				Tournament Brave Knights 2024
		date 2024-02-10	rnd 5	type Rapid	result 0.5	date 2024-03-16	rnd 3	type Rapid	result 1
		Opponent Ndebele, S (Sifiso)				Opponent Williams, M (Mackenzy)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Midas Paints Chess Cup Term 2 2023				Tournament Western Cape PS Individuals 2023
		date 2023-04-15	rnd 2	type Rapid	result 1	date 2023-05-05	rnd 1	type Standard	result 1
		Opponent Adams, L (Lo-Keisha)				Opponent Abrahams, M (Marshal)
2	4	Tournament Cape Winelands Schools - Prestige 2024				Tournament Brave Knights 2024
		date 2024-03-02	rnd 5	type Standard	result 1	date 2024-03-16	rnd 3	type Rapid	result 1
		Opponent Lee, M (Monreeq)				Opponent Williams, M (Mackenzy)
3	4	Tournament Worcester Knock-Out 2023				Tournament Worcester Knock-Out 2023
		date 2023-10-14	rnd 2	type Rapid	result 1	date 2023-10-14	rnd 5	type Rapid	result 1
		Opponent Matolengwe, L (Lemvana)				Opponent Goso, I (Izwi)

#	Games	Start				End
1	4	Tournament Cape Winelands Schools Prestige 2023				Tournament Western Cape PS Individuals 2023
		date 2023-03-11	rnd 3	type Standard	result 1	date 2023-05-05	rnd 1	type Standard	result 1
		Opponent Van Zyl, A (Adam)				Opponent Abrahams, M (Marshal)
2	3	Tournament De Villiers PS Tournament 2024				Tournament Cape Winelands Schools - Trials 1 2025
		date 2024-08-17	rnd 5	type Standard	result 1	date 2025-02-22	rnd 2	type Standard	result 1
		Opponent Coetzee, S (Sean)				Opponent Steenkamp, W (Wentzel)
3	2	Tournament Cape Winelands Schools Prestige 2025				Tournament Cape Winelands Schools Prestige 2025
		date 2025-03-08	rnd 1	type Standard	result 1	date 2025-03-08	rnd 2	type Standard	result 1
		Opponent Du Toit, S (Shaundre)				Opponent Jagers, Z (Zayd)

#	Games	Start				End
1	6	Tournament Robertson Strategema Chess May 2024				Tournament Cape Winelands Top Schools 2025
		date 2024-05-11	rnd 3	type Rapid	result 1	date 2025-08-23	rnd 3	type Rapid	result 1
		Opponent Edons, M (Mihandro)				Opponent Grill, E (Eli)
2	4	Tournament Worcester Knock-Out 2023				Tournament Worcester Knock-Out 2023
		date 2023-10-14	rnd 2	type Rapid	result 1	date 2023-10-14	rnd 5	type Rapid	result 1
		Opponent Matolengwe, L (Lemvana)				Opponent Goso, I (Izwi)
3	4	Tournament Midas Paints Chess Cup Term 2 2023				Tournament Midas Paints Chess Cup Term 2 2023
		date 2023-04-15	rnd 2	type Rapid	result 1	date 2023-04-15	rnd 5	type Rapid	result 1
		Opponent Adams, L (Lo-Keisha)				Opponent Pretorius, L (Lukas)

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Brandt ,T (Tyler)	3	0	-425	3	0	-425	0	0	0	0	0	0
1	Brandt ,T (Tyler)	3	1291.6	866.6	3	1261.2	866.6	0	0	0	0	0	0
2	Robertson ,M (Marvin)	3	0	-425	2	0	-425	1	0	-425	0	0	0
2	Robertson ,M (Marvin)	3	1452.6	1027.6	2	1336.2	1027.6	1	1531.2	1027.6	0	0	0
3	Da Silva ,N (Noah Clint)	3	2	141.7	1	1	425	2	1	0	0	0	0
3	Da Silva ,N (Noah Clint)	3	1214.7	1356.4	1	1225.3	1639.7	2	1164.1	1214.7	0	0	0
4	Viljoen ,A (Adrihan)	2	0	-425	2	0	-425	0	0	0	0	0	0
4	Viljoen ,A (Adrihan)	2	1366.9	941.9	2	1343.4	941.9	0	0	0	0	0	0
5	Steenkamp ,W (Willem)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
5	Steenkamp ,W (Willem)	2	1246.8	1034.2	2	1124.2	1034.2	0	0	0	0	0	0
6	Kriel ,D (Daniel)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Kriel ,D (Daniel)	2	1206.3	781.3	2	1187.2	781.3	0	0	0	0	0	0
7	Badenhorst ,M (Marinus)	2	0	-425	1	0	-425	1	0	-425	0	0	0
7	Badenhorst ,M (Marinus)	2	1285.4	860.4	1	1288.8	860.4	1	1202.8	860.4	0	0	0
8	Africa ,F (Faithlynn)	2	0	-425	1	0	-425	1	0	-425	0	0	0
8	Africa ,F (Faithlynn)	2	1268.1	843.1	1	1355.5	843.1	1	1223.2	843.1	0	0	0
9	Harman ,C (Connor)	2	1	0	1	0	-425	1	1	425	0	0	0
9	Harman ,C (Connor)	2	1349.2	1349.2	1	1308	924.2	1	1335.5	1774.2	0	0	0
10	Small ,W (Wyatt)	2	1	0	1	0.5	0	1	0.5	0	0	0	0
10	Small ,W (Wyatt)	2	1220	1220	1	1170.8	1220	1	1219.9	1220	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Weng, I (Ivan)

Ratings

Game statistics

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Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms